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- W2162374494 abstract "In this paper, the space alternating generalized expectation-maximization (SAGE) method is applied to derive receivers for coded CDMA systems. In the so-called SAGE receiver, hard decision code symbols are fed back from the single user decoders to the joint channel estimator and interference canceler. Using multivariate Gaussian approximations, the SAGE receiver is then modified such that soft values of code symbols are fed back from the single user decoders. We refer to this modified receiver as SAGE-based receiver. Compared to the SAGE receiver, the SAGE-based receiver considers the statistical properties of the code symbols, thus the channel estimation and the interference cancellation take symbol estimation errors into account. A performance improvement in terms of bit error rate (BER) and system load of the SAGE-based receiver compared to the SAGE receiver and other receivers is shown by means of Monte Carlo simulations." @default.
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- W2162374494 date "2007-09-01" @default.
- W2162374494 modified "2023-09-26" @default.
- W2162374494 title "Iterative SAGE-Based Receivers for Synchronous Coded DS-CDMA" @default.
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- W2162374494 doi "https://doi.org/10.1109/vetecf.2007.225" @default.
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